GMS模型的水文水质模拟应用研究

GMS模型是应用广泛的地下水水文模拟系统。以昆山市某古镇为研究区域,采用GMS模型对其水文水质进行模拟研究。通过用概化方法建立水文地质概念模型和数学模型,用反演迭代方法矫正模型的主要参数等过程,分别用MODFLOW和MT3DMS模块模拟和预测了研究区水文水质状况和污染物迁移趋势。数据对比结果显示,模拟值与检测值基本一致,表明校正后的GMS模型能较好再现地下水流系统特征,并能应用于流域污染物扩散过程的模拟和预测中,对地下水污染物的迁移趋势进行分析,以便及时采取有效措施控制污染源。

Application of GMS Model in Hydrological and Water Quality Simulation

GMS model is a widely-used system in groundwater simulation. This paper took a town in Kunshan as a study area tosimulate the hydrological conditions and water quality of the groundwater using the GMS model. The conceptual and mathematicalmodel was established with generalized method, and the main parameters of the model was calibrated with iterative method, andthen MODFLOW and MT3DMS were used to simulate and forecast the hydrological condition and water quality and migrationtrends of pollutants in the study area. The results show that the simulated values are consistent with measured values, which meansthat the calibrated GMS model can better reproduce the characteristics of the underground water with strong reliability, and can beapplied to simulate and forecast migration trends of pollutants in watersheds.